I this game is great - the pixel art is amazing, the way the theme is included is nice, and it might just be my love of RPGs, but I love the gameplay! I especially like how you can still use moves after running out of power, at the cost of your health. I wish the level design was a bit clearer about where you are supposed to go... exploration can be nice, but a 160x144 screen really limits your visibility. It's easy to miss a checkpoint, and it can be really annoying to be set back like that.
I also have a small complaint not directly related to the game - the web version is too big and, with the normal website scaling, doesn't fit on my screen.
Fantastic job!